CN101219341A - Detergent suitable for cleaning hollow fiber ultrafiltration membrane and method for producing the same - Google Patents
Detergent suitable for cleaning hollow fiber ultrafiltration membrane and method for producing the same Download PDFInfo
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- CN101219341A CN101219341A CNA2007100467080A CN200710046708A CN101219341A CN 101219341 A CN101219341 A CN 101219341A CN A2007100467080 A CNA2007100467080 A CN A2007100467080A CN 200710046708 A CN200710046708 A CN 200710046708A CN 101219341 A CN101219341 A CN 101219341A
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- hollow fiber
- ultrafiltration membrane
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Abstract
The invention provides a cleaning agent that is applicable to clean hollow fiber ultrafiltration membrane, which comprises the compounds (percentage by weight): anhydrous sodium carbonate accounts for 25-45 percent, trisodium phosphate accounts for 5-20 percent, anhydrous sodium sulfate accounts for 2-5 percent, ethylene diamine tetraacetic acid tetrasodium salt (EDTA-4Na) accounts for 5-15 percent, sodium percarbonate accounts for 0-33 percent, emulsifying agent SAS accounts for 8-15 percent, peregal-25 accounts for 0-5 percent and dodecyl sodium sulfate accounts for 4-10 percent. The compounds are added into an enamel reactor with a stirrer and a grinder in sequence to be stirred for 2-3 hours, thus obtaining the cleaning agent through grinding the mixture evenly. The invention has simple preparation and is particularly applicable to clean hollow fiber ultrafiltration membrane such as ultrafiltration oily wastewater, organic wastewater, protein concentration, etc.; the invention has strong decontamination direction, high effect and low cleaning cost.
Description
Technical field
The present invention relates to the cleaning agent technical field, more specifically, relate to the cleaning agent of milipore filter, be meant a kind of cleaning agent that is applicable to the cleaning hollow fiber ultrafiltration membrane and preparation method thereof especially.
Background technology
In industrial production, the oily waste water source is very extensive, cleans oil-washing tank oily waste water, the oily cargo ship oily waste water of scrapping yard, tanker ballast water, tank washings, the metal cutting of waste water, petrochemical industry oily waste water, railway locomotive depot as oil field extracted water, storage and shipping of oil products, oil tanker accident, metal surface and grinds emulsifying waste water, steel plant's cold-rolling emulsion waste water, food processing process oily waste water or the like.Oil content in the oily waste water is commonly considered as existing with oil slick, dispersed oil, oil emulsion, dissolving wet goods form.
The Treatment with Ultrafiltration oily waste water can concentrate wherein oil, fat composition and other some macromolecular substances at present, and the volume of waste liquid is significantly reduced, and the degradation use can be with it as burning oil processing as people after the oil content in the concentrate can reclaim simultaneously.
Because ultrafiltration is a kind of physical separating process, the hyperfiltration treatment waste liquid does not add chemical agent, do not produce mud, membrane technology has obtained more and more widely application in water treatment field, and contain a large amount of organic substances in the water source, normally exist with suspension, dissolved matter and colloidal form, these macromolecular trapped substances will form the layer of gel layer on the surface of film, make film be subjected to a certain degree pollution, the permeation flux that shows as film descends, the actual relative molecular mass of holding back pollutant descends and diminishes, and operating pressure rises.
Oily waste water, organic wastewater etc. are handled through hollow fiber ultrafiltration membrane, and the membrane contaminant of its generation mainly contains adhesion and growth and some inorganic scales of grease, organic colloid, microorganism.Therefore selecting a kind of suitable cleaning agent and cleaning method is crucial to the cleaning of hollow fiber ultrafiltration membrane, if clean the incorrect damage that might cause film.
At present the cleaning method of Pollution of Ultrafiltration Membrane has physics to clean and two kinds of Chemical cleaning usually.Physics cleans and mainly contains waterpower ablution, solution-air impulse method, backwash method, ultrasonic cleaning process, mechanical ablution and negative pressure ablution.More serious when damage ratio, when the method that adopts physics to clean can not have been recovered flux, need to adopt chemical method to clean.Chemical cleaning is exactly a heterogeneous reaction between pollutant and the cleaning agent in essence.The cleaning agent that Chemical cleaning is used always is as follows:
1. acid ﹠ alkali liquid: may be used to the cleaning of membrane module as bases such as nitric acid, phosphoric acid, citric acid and oxalic acid and NaOH, sodium carbonate;
2. surfactant:, can be used alone surfactant and also can use by several surfactant compounds as anion or nonionic surface active agent;
3. enzyme: as protease, amylase etc.;
4. oxidation biocide: as hydrogen peroxide, clorox etc.;
5. chelating agent: as EDTA-2Na, EDTA-4Na, gluconic acid sodium salt etc.
This type of cleaning agent can use separately also can combine composite use.Acid can make inorganic ions become solable matter at the deposit that the film surface forms, and adds that simultaneously chelating agent is removed sediment; Aqueous slkali can effectively be removed the pollution that grease, protein etc. cause; Surfactant can improve the wettability of cleaning agent, increases the contact action between chemical and the dirt, makes the consumption of flushing water and washing time drop to minimum; The enzyme cleaning agent has good cleaning function to pollutants such as some cell fragments; The oxidation biocide can effectively prevent the pollution of microorganism viscosity mud and bacterium.
In film separated, traditional cleaning method was that soda acid alternately cleans, and common employing highly basic and oxidant (clorox) combination that the hollow-fibre membrane pollution is more serious are cleaned.For oil-containing and organic wastewater, when adopting said method to clean, scavenging period is long and cleaning strength is also very big, has influenced the product water quality thereby not only the pore structure of film is impacted, thereby has caused damage the service life that also can shorten film.
Summary of the invention
Main purpose of the present invention is exactly the problems and shortcomings at above existence, a kind of cleaning agent of cleaning hollow fiber ultrafiltration membrane and preparation method thereof that is applicable to is provided, and this cleaning agent preparation is simple, be specially adapted to the ultrafiltration oily waste water, organic wastewater and protein-based cleaning, the decontamination that hollow fiber ultrafiltration membrane such as concentrates are with strong points, efficient, it is low to clean cost.
To achieve these goals, the technical scheme that is applicable to that the cleaning agent that cleans hollow fiber ultrafiltration membrane adopts of the present invention is as follows:
A kind of cleaning agent that cleans hollow fiber ultrafiltration membrane that is applicable to is characterized in, comprises following component (percentage by weight):
Sodium carbonate 25～45%;
Tertiary sodium phosphate 5～20%;
Sodium sulphate 2～5%;
EDTA-4Na 5～15％；
SODIUM PERCARBONATE 0～33%;
SAS 8～15%;
Peregal-250～5%;
Dodecyl sodium sulfate 4～10%.
Described sodium carbonate is 45%, and described tertiary sodium phosphate is 5%, and described sodium sulphate 5%, described EDTA-4Na are 15%, and described SAS is 1 5%, and described peregal-25 is 5%, and described dodecyl sodium sulfate is 10%.
Described sodium carbonate is 40%, and described tertiary sodium phosphate is 10%, and described sodium sulphate is 5%, and described EDTA-4Na is 5%, and described SODIUM PERCARBONATE is 23%, and described SAS is 10%, and described dodecyl sodium sulfate is 7%.
The above-mentioned cleaning agent that cleans hollow fiber ultrafiltration membrane that is applicable to is applicable to the cleaning of the hollow fiber ultrafiltration membrane of oily waste water.
Described sodium carbonate 25%, described tertiary sodium phosphate 20%, described sodium sulphate 2%, described EDTA-4Na are 6%, and described SODIUM PERCARBONATE is 33%, and described SAS is 8%, and described peregal-25 is 2%, described dodecyl sodium sulfate is 4%.
Described sodium carbonate 37%, described tertiary sodium phosphate 5%, described sodium sulphate 5%, described EDTA-4Na are 8%, and described SODIUM PERCARBONATE is 25%, and described SAS is 10%, and described dodecyl sodium sulfate is 10%.
The above-mentioned cleaning agent that cleans hollow fiber ultrafiltration membrane that is applicable to is applicable to the cleaning of organic wastewater and protein-based hollow fiber ultrafiltration membrane.
The present invention also provides a kind of above-mentioned method that is applicable to the cleaning agent that cleans hollow fiber ultrafiltration membrane for preparing, be characterized in, have each component that will be applicable to the cleaning agent that cleans hollow fiber ultrafiltration membrane in the enamel reactor that stirs and grind at one and add successively in order by following proportioning:
Sodium carbonate 25～45%;
Tertiary sodium phosphate 5～20%;
Sodium sulphate 2～5%;
EDTA-4Na 5～15％；
SODIUM PERCARBONATE 0～33%;
SAS 8～15%;
Peregal-25 0～5%;
Dodecyl sodium sulfate 4～10%;
And stirring and evenly mixing also grinds evenly at normal temperatures.
Cleaning agent of the present invention is specially adapted to the cleaning of oily waste water, organic wastewater and protein-based milipore filter, and traditional cleaning agent has following some advantage at present:
1., with strong points, grease, organic matter, protein dirt are had special efficacy.
2., high efficiency, add multiple efficient surfactant at the characteristics of hollow fiber ultrafiltration membrane, can be rapidly and efficiently remove grease, organic matter, the protein dirt on striping surface, reduce the cleaning frequency of film.
3., to clean energy consumption low because with strong points, high efficiency, the system scavenging period of making shortens greatly, thereby has reduced the energy consumption of system.
4., have a regeneration function, the permeation flux of recovery hollow-fibre membrane that can be has rapidly and efficiently quickened the regeneration of system.
The specific embodiment
Content for a better understanding of the present invention is described further below in conjunction with specific embodiment.
Embodiment 1
With following each component in following ratio (percentage by weight) proportioning, have at one and to stir and to grind in the enamel reactor of function, add sodium carbonate, tertiary sodium phosphate, sodium sulphate, EDTA-4Na, SAS, peregal-25, dodecyl sodium sulfate successively, stirred at normal temperatures 2～3 hours, grind evenly, promptly get the powdery cleaning agent that cleans hollow fiber ultrafiltration membrane that is applicable to of the present invention, preferentially be used to handle the cleaning agent of the hollow fiber ultrafiltration membrane of oily waste water.
The blending ingredients percentage by weight
Sodium carbonate 45%
Tertiary sodium phosphate 5%
Sodium sulphate 5%
EDTA-4Na 15％
SAS 15%
Peregal-25 5%
Dodecyl sodium sulfate 10%
Embodiment 2
With following each component in following ratio (percentage by weight) proportioning, have at one and to stir and to grind in the enamel reactor of function, add sodium carbonate, tertiary sodium phosphate, sodium sulphate, EDTA-4Na, SODIUM PERCARBONATE, SAS, dodecyl sodium sulfate successively, stirred at normal temperatures 2～3 hours, grind evenly, promptly get the powdery cleaning agent that cleans hollow fiber ultrafiltration membrane that is applicable to of the present invention, preferentially be used to handle the cleaning of the hollow fiber ultrafiltration membrane of oily waste water.
The blending ingredients percentage by weight
Sodium carbonate 40%
Tertiary sodium phosphate 10%
Sodium sulphate 5%
EDTA-4Na 5％
SODIUM PERCARBONATE 23%
SAS 10%
Dodecyl sodium sulfate 7%
Embodiment 3
With following each component in following ratio (percentage by weight) proportioning, have at one and to stir and to grind in the enamel reactor of function, add sodium carbonate, tertiary sodium phosphate, sodium sulphate, EDTA-4Na, SODIUM PERCARBONATE, SAS, peregal-25, dodecyl sodium sulfate successively, stirred at normal temperatures 2～3 hours, grind evenly, promptly get the powdery cleaning agent that cleans hollow fiber ultrafiltration membrane that is applicable to of the present invention, preferentially be used to handle the cleaning of organic wastewater and protein-based hollow fiber ultrafiltration membrane.
The blending ingredients percentage by weight
Sodium carbonate 25%
Tertiary sodium phosphate 20%
Sodium sulphate 2%
EDTA-4Na 6％
SODIUM PERCARBONATE 33%
SAS 8%
Peregal-25 2%
Dodecyl sodium sulfate 4%
Implement 4
With following each component in following ratio (percentage by weight) proportioning, have at one and to stir and to grind in the enamel reactor of function, add sodium carbonate, tertiary sodium phosphate, sodium sulphate, EDTA-4Na, SODIUM PERCARBONATE, SAS, dodecyl sodium sulfate successively, stirred at normal temperatures 2～3 hours, grind evenly, promptly get the powdery cleaning agent that cleans hollow fiber ultrafiltration membrane that is applicable to of the present invention, preferentially be used to handle the cleaning of organic wastewater and protein-based hollow fiber ultrafiltration membrane.
The blending ingredients percentage by weight
Sodium carbonate 37%
Tertiary sodium phosphate 5%
Sodium sulphate 5%
EDTA-4Na 8％
SODIUM PERCARBONATE 25%
SAS 10%
Dodecyl sodium sulfate 10%
Using method by the cleaning agent of the present invention of embodiment 1, embodiment 2, embodiment 3, embodiment 4 preparations is as follows:
1. it was clean to filter the feed liquid discharging earlier, with clear water flushing 5～10 minutes.
2. according to the pollution condition of film, carry out wash cycles with deionized water preparation 1.5～2% cleaning agents of the present invention.
3. cleaning temperature is controlled at 40 ℃, and the mode that adopts sound to combine circulated and soaked in 20 minutes.
4. scavenging period is decided on the situation that film pollutes, generally about 2 hours.
5. the cleaning fluid in the emptying film is with rinsed with deionized water 3～5 minutes (preferably adopt 35 ℃ hot water injection, washings do not circulate).
6. equipment comes into operation again.
Cleaning fluid is very muddy during 7. as beginning, and suggestion did not circulate cleaning fluid discharge at preceding ten minutes that clean.
Through above-mentioned several steps cleanings, can recover the permeation flux of hollow fiber ultrafiltration membrane substantially, cleaning operation conveniently is easy to control.
Clean the method for using the acid cleaning again and the repetition test that adopts the cleaning of this cleaning agent by replacing cleaning method with traditional soda acid and under the highly basic condition, adding oxidant, find that employing cleaning agent of the present invention has very big advantage under the prerequisite that does not need acid to clean on scavenging period and penetrating fluid flux recovery situation.Wash result sees the following form:
| Cleaning method | Scavenging period (h) | Film dustiness (%) | Flux recovery rate (%) |
| Traditional soda acid alternately cleans | 5 | 38.27 | 93.85 |
| Soda acid alternately cleans and adds an amount of oxidant | 3.5 | 42.50 | 96.34 |
| The embodiment of the invention 1 (need not pickling) | 2 | 55.60 | 99.51 |
| The embodiment of the invention 2 (need not pickling) | 2 | 59.21 | 99.87 |
| The embodiment of the invention 3 (need not pickling) | 2 | 56.68 | 99.79 |
| The embodiment of the invention 4 (need not pickling) | 2 | 56.60 | 99.60 |
This cleaning agent can recover the permeation flux of hollow-fibre membrane effectively apace, simultaneously membrane module is had regeneration function; Use this cleaning agent can effectively shorten the scavenging period of system, so just greatly reduce the energy consumption of system, and clean post rinse conveniently, energy-saving and water-saving; This cleaning agent is to the harmless effect of hollow-fibre membrane silk, and the film silk performance after the cleaning is almost constant.
In sum, of the present inventionly be applicable to that the cleaning agent preparation of cleaning hollow fiber ultrafiltration membrane is simple, be specially adapted to the ultrafiltration oily waste water, organic wastewater and protein-based cleaning, the decontamination that hollow fiber ultrafiltration membrane such as concentrates are with strong points, efficient, it is low to clean cost.
Need to prove, all quote in this application as a reference, just quoted as a reference separately as each piece document at all documents that the present invention mentions.Should understand in addition, above-described is specific embodiments of the invention and the know-why used, after having read above-mentioned instruction content of the present invention, those skilled in the art can make various changes or modifications and not deviate from spirit of the present invention and scope the present invention, and these equivalent form of values fall within the scope of the invention equally.
Claims (8)
1. one kind is applicable to the cleaning agent that cleans hollow fiber ultrafiltration membrane, it is characterized in that, comprises following component (percentage by weight):
Sodium carbonate 25～45%;
Tertiary sodium phosphate 5～20%;
Sodium sulphate 2～5%;
EDTA-4Na 5～15％；
SODIUM PERCARBONATE 0～33%;
SAS 8～15%;
Peregal-250～5%;
Dodecyl sodium sulfate 4～10%.
2. the cleaning agent that cleans hollow fiber ultrafiltration membrane that is applicable to as claimed in claim 1, it is characterized in that, described sodium carbonate is 45%, described tertiary sodium phosphate is 5%, described sodium sulphate 5%, described EDTA-4Na are 15%, and described SAS is 15%, described peregal-25 is 5%, and described dodecyl sodium sulfate is 10%.
3. the cleaning agent that cleans hollow fiber ultrafiltration membrane that is applicable to as claimed in claim 1, it is characterized in that, described sodium carbonate is 40%, described tertiary sodium phosphate is 10%, described sodium sulphate is 5%, and described EDTA-4Na is 5%, and described SODIUM PERCARBONATE is 23%, described SAS is 10%, and described dodecyl sodium sulfate is 7%.
4. be applicable to the cleaning of the hollow fiber ultrafiltration membrane of oily waste water as claim 2 or the 3 described cleaning agents that clean hollow fiber ultrafiltration membrane that are applicable to.
5. the cleaning agent that cleans hollow fiber ultrafiltration membrane that is applicable to as claimed in claim 1, it is characterized in that, described sodium carbonate 25%, described tertiary sodium phosphate 20%, described sodium sulphate 2%, described EDTA-4Na are 6%, described SODIUM PERCARBONATE is 33%, described SAS is 8%, and described peregal-25 is 2%, and described dodecyl sodium sulfate is 4%.
6. the cleaning agent that cleans hollow fiber ultrafiltration membrane that is applicable to as claimed in claim 1, it is characterized in that, described sodium carbonate 37%, described tertiary sodium phosphate 5%, described sodium sulphate 5%, described EDTA-4Na are 8%, and described SODIUM PERCARBONATE is 25%, described SAS is 10%, and described dodecyl sodium sulfate is 10%.
7. be applicable to the cleaning of organic wastewater and protein-based hollow fiber ultrafiltration membrane as claim 5 or the 6 described cleaning agents that clean hollow fiber ultrafiltration membrane that are applicable to.
8. one kind prepares the method that is applicable to the cleaning agent that cleans hollow fiber ultrafiltration membrane as claimed in claim 1, it is characterized in that, have each component that will be applicable to the cleaning agent that cleans hollow fiber ultrafiltration membrane in the enamel reactor that stirs and grind at one and add successively in order by following proportioning:
Sodium carbonate 25～45%;
Tertiary sodium phosphate 5～20%;
Sodium sulphate 2～5%;
EDTA-4Na 5～15％；
SODIUM PERCARBONATE 0～33%;
SAS 8～15%;
Peregal-250～5%;
Dodecyl sodium sulfate 4～10%;
And stirring and evenly mixing also grinds evenly at normal temperatures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100467080A CN101219341B (en) | 2007-09-29 | 2007-09-29 | Detergent suitable for cleaning hollow fiber ultrafiltration membrane and method for producing the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100467080A CN101219341B (en) | 2007-09-29 | 2007-09-29 | Detergent suitable for cleaning hollow fiber ultrafiltration membrane and method for producing the same |
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| CN101219341A true CN101219341A (en) | 2008-07-16 |
| CN101219341B CN101219341B (en) | 2010-11-10 |
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| CN102343217A (en) * | 2011-09-21 | 2012-02-08 | 石家庄开发区德赛化工有限公司 | Ultrafiltration membrane alkaline cleaner |
| CN103007766A (en) * | 2012-12-07 | 2013-04-03 | 常州大学 | Preparation method of cleaning agent for wastewater treatment membrane in pesticide industry |
| CN103657427A (en) * | 2012-09-03 | 2014-03-26 | 湖州欧美新材料有限公司 | Hollow fiber ultrafiltration membrane cleaning agent and preparation method thereof |
| CN104824606A (en) * | 2015-05-22 | 2015-08-12 | 锦辉国际控股集团有限公司 | Method of preparing edible native elements with subsurface brine |
| CN105080347A (en) * | 2014-05-20 | 2015-11-25 | 天津市鑫磊净化设备有限公司 | Hollow fiber ultrafiltration membrane cleaning agent, preparation and application thereof |
| CN105413475A (en) * | 2015-11-17 | 2016-03-23 | 新疆水处理工程技术研究中心有限公司 | Cleaning agent suitable for cleaning hollow fiber nanofiltration membranes and preparation method thereof |
| CN107261850A (en) * | 2017-06-21 | 2017-10-20 | 太仓市金鹿电镀有限公司 | A kind of milipore filter high-efficient cleaning washing lotion and cleaning method |
| CN107349796A (en) * | 2017-07-12 | 2017-11-17 | 李晓岩 | A kind of method that ceramic membrane directly filters municipal wastewater |
| CN110898675A (en) * | 2019-12-09 | 2020-03-24 | 吉林省电力科学研究院有限公司 | Calcium sulfate scale cleaning agent for reverse osmosis membrane and cleaning method |
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| JP3199824B2 (en) * | 1992-03-13 | 2001-08-20 | 日本パーカライジング株式会社 | Cleaning solution for tinplate and cleaning method |
| IT1270621B (en) * | 1994-07-14 | 1997-05-07 | Balsano Chimica Ind | USEFUL COMPOSITION IN THE ELIMINATION OF ANTI-HYGIENE RESIDUES FROM THE SURFACES OF FOOD PRODUCTS OF ANIMAL ORIGIN AND PROCEDURE USING IT |
| CN100404657C (en) * | 2006-03-15 | 2008-07-23 | 江苏久吾高科技股份有限公司 | Cleaning agent for ceramic film and its preparation method |
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| CN103657427A (en) * | 2012-09-03 | 2014-03-26 | 湖州欧美新材料有限公司 | Hollow fiber ultrafiltration membrane cleaning agent and preparation method thereof |
| CN103657427B (en) * | 2012-09-03 | 2016-03-16 | 湖州欧美新材料有限公司 | Hollow fiber ultrafiltration membrane cleaning agent and preparation thereof |
| CN103007766A (en) * | 2012-12-07 | 2013-04-03 | 常州大学 | Preparation method of cleaning agent for wastewater treatment membrane in pesticide industry |
| CN105080347A (en) * | 2014-05-20 | 2015-11-25 | 天津市鑫磊净化设备有限公司 | Hollow fiber ultrafiltration membrane cleaning agent, preparation and application thereof |
| CN104824606A (en) * | 2015-05-22 | 2015-08-12 | 锦辉国际控股集团有限公司 | Method of preparing edible native elements with subsurface brine |
| CN105413475A (en) * | 2015-11-17 | 2016-03-23 | 新疆水处理工程技术研究中心有限公司 | Cleaning agent suitable for cleaning hollow fiber nanofiltration membranes and preparation method thereof |
| CN107261850A (en) * | 2017-06-21 | 2017-10-20 | 太仓市金鹿电镀有限公司 | A kind of milipore filter high-efficient cleaning washing lotion and cleaning method |
| CN107349796A (en) * | 2017-07-12 | 2017-11-17 | 李晓岩 | A kind of method that ceramic membrane directly filters municipal wastewater |
| CN110898675A (en) * | 2019-12-09 | 2020-03-24 | 吉林省电力科学研究院有限公司 | Calcium sulfate scale cleaning agent for reverse osmosis membrane and cleaning method |
| CN110975619A (en) * | 2019-12-16 | 2020-04-10 | 恩泰环保科技（常州）有限公司 | Novel reverse osmosis membrane rinsing system and rinsing method thereof |
| CN110975619B (en) * | 2019-12-16 | 2022-02-11 | 恩泰环保科技（常州）有限公司 | Reverse osmosis membrane rinsing system and rinsing method thereof |
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Address after: Building 1-3, 619 Caifeng Road, Huzhou City, Zhejiang Province, 313000 Patentee after: Euro American new materials (Zhejiang) Co.,Ltd. Address before: 313000 Zhejiang city of Huzhou Province Economic and Technological Development Zone West Road No. 688 Patentee before: OCHEMATE MATERIAL TECHNOLOGIES Co.,Ltd. |
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